A quantitative assessment of hormetic responses of plants to ozone

Agathokleous, Evgenios; Araminienė, Valda; Belz, Regina G.; Calatayud, Vicent; Marco, Alessandra De; Domingos, Marisa; Feng, Zhaozhong; Hoshika, Yasutomo; Kitao, Mitsutoshi; Koike, Takao; Paoletti, Elena; Saitanis, Costas J.; Sicard, Pierre; Calabrese, Edward J.

doi:10.1016/j.envres.2019.108527

Cited by 41 publications

(25 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Second, elevation greater than 40 ppb above the control is far from being a realistic increase within this century even with a highly pessimistic emission scenario (Sicard et al, ). Moreover, a small increase in O 3 levels (e.g., well below 10 ppb above control in the database) may rather lead to adaptive/repair processes, often accompanied by stimulatory responses, hence potentially introducing bias in the estimates of meta‐analyses studying adverse O 3 effects (Agathokleous, Araminiene, et al, ).…”

Section: Methodsmentioning

confidence: 99%

Ozone will remain a threat for plants independently of nitrogen load

Feng

Shang

et al. 2019

Functional Ecology

Self Cite

View full text Add to dashboard Cite

Elevated concentrations of ground‐level ozone (O3) and atmospheric nitrogen (N) deposition occur concurrently. The negative effects of elevated O3 on plants have been widely studied and are well understood nowadays. However, how the effects of elevated O3 on plants may be driven by N deposition remains an unsolved puzzle. We conducted a meta‐analysis and showed that the negative effects of elevated O3 on photosynthesis, stomatal conductance, growth and biomass production of semi‐natural and natural vegetation may remain unchanged by N deposition in the coming future under realistic increases in O3 concentrations (+20 to 40 ppb) and N deposition (up to 60 kg ha−1 year−1). The negative effect of elevated O3 on chlorophyll content is offset by soil N addition; however, the negative effect on biomasses is not offset by soil N addition. Across functional groups and O3 levels, N addition exacerbated O3 effects on root when N increased from 0–10 kg N ha−1 year−1 to 11–30 kg N ha−1 year−1. However, an analysis as per the plant functional group revealed that such a N‐dependent O3 effect was significant only in perennial non‐woody plants, and was non‐significant when only realistic increases in O3 concentrations were considered. Likewise, N addition appeared to exacerbate O3‐negative effects on photosynthesis of trees when N increased from 0–30 kg N ha−1 year−1 to >60 kg N ha−1 year−1; however, this effect was significant only when realistic increases in O3 concentrations were considered. The results suggest potential error in the current estimates of the overall O3 impacts on plants due to no consideration of soil N availability, and encourage further studies on the interaction of O3 and N availability that will permit more robust analyses in the future. Elevated O3 will likely remain a persistent agricultural and ecological issue independently of N deposition. A free Plain Language Summary can be found within the Supporting Information of this article.

show abstract

Section: Methodsmentioning

confidence: 99%

Ozone will remain a threat for plants independently of nitrogen load

Feng

Shang

et al. 2019

Functional Ecology

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, the existence of nonlinear responses in plants on specific endpoints is not limited to the use of rare elements or herbicides. In the past 10 years, stimulatory responses with low doses of antibiotics (Agathokleous et al., 2018c), nanomaterials (Agatho,kleous, Feng, Iavicoli, & Calabrese, 2019d), ozone (Agathokleous et al., 2019a, 2019b), biostimulants (i.e., hormetins from biological origin) (Agathokleous et al., 2019e), metals (Poschenrieder, Cabot, Martos, Gallego, & Barceló, 2013), and synthetic elicitors (Vargas‐Hernandez et al., 2017) have been found.…”

Section: Hormesis In Plantsmentioning

confidence: 99%

“…This phenomenon is dependent on the stress intensity, and therefore stresses are classified as beneficial (i.e., eustress) or harmful (i.e., distress) when permanent damages are produced to plants (Vargas‐Hernandez et al., 2017). The stimulatory responses due to eustress in plants are generally less than twofold compared to the control response and no more than 10‐fold in the width of the dose range (Agathokleous & Calabrese, 2019a; Agathokleous et al., 2019a). These low doses of stress are known to promote effects such as photosystem II efficiency, chlorophyll content, among others, which can protect plants for approximately 7 to 10 days against successive challenging events (Agathokleous & Calabrese, 2019a).…”

Section: Hormesis In Plantsmentioning

confidence: 99%

“…Recently, a detailed meta‐analysis performed by Agathokleous et al. (2019a) explains the ozone hormesis in stressed plants. It was observed that among 493 various dose responses to ozone, the median maximum stimulatory response (MAX) value for plants was 124% compared to control, regardless of response variables and the species type.…”

Section: Hormesis In Plantsmentioning

confidence: 99%

“…However, small differences were detected based on specific O 3 concentrations, exposure duration, and exposure systems. For example, the maximum stimulatory responses were observed in plants when they were exposed to 60 to 69 ppb for over 90 days and using open systems (Agathokleous et al., 2019a). These conditions were observed on the response at different levels, including growth, production, biochemical, physiological, and anatomical characteristics.…”

Section: Hormesis In Plantsmentioning

confidence: 99%

See 2 more Smart Citations

Abiotic stress hormesis: An approach to maintain quality, extend storability, and enhance phytochemicals on fresh produce during postharvest

Duarte-Sierra

Tiznado‐Hernández

Jha

et al. 2020

Comp Rev Food Sci Food Safe

View full text Add to dashboard Cite

Postharvest losses of whole and fresh-cut fruits and vegetables cause significant reductions in food availability and an increase in economic losses/damages. Additionally, regulatory agencies are increasingly restricting the postharvest use of synthetic chemicals. This has strengthened the need to develop environmentally friendly approaches to postharvest management, such as utilization of natural compounds, antagonist microorganisms, and treatments with abiotic stresses, among others. The current review focuses on the potential of low doses of abiotic stresses to extend the shelf life, increase the amount of health beneficial phytochemicals, and reduce postharvest losses of fresh produce. The positive effects of the responses to low doses of abiotic stresses are based on a biological phenomenon termed hormesis. Research to develop new technologies to improve postharvest handling of fresh fruit and vegetables as well as minimally processed products is critical. The phenomenon of abiotic stress hormesis in fresh fruit and vegetables shows the potential not only to enhance defense compounds that could reduce diseases during postharvest storage and extend shelf life but also to elevate the content of health-promoting substances. The beneficial effects of UV-C hormesis have been extensively investigated in numerous types of fresh produce. However, our knowledge on hormesis exhibited by other abiotic stresses is still limited. Hence, the objective of this review is to discuss the relevance of hormesis for postharvest research by examining whether all abiotic stresses exhibit the phenomenon, its biological significance, the potential application in various commodities, and how it may direct the future of postharvest research.

show abstract

An Environmental Perspective on Health

Agathokleous

Calabrese

2020

Healthy Ageing and Longevity

View full text Add to dashboard Cite

A quantitative assessment of hormetic responses of plants to ozone

Cited by 41 publications

References 78 publications

Ozone will remain a threat for plants independently of nitrogen load

Ozone will remain a threat for plants independently of nitrogen load

Abiotic stress hormesis: An approach to maintain quality, extend storability, and enhance phytochemicals on fresh produce during postharvest

An Environmental Perspective on Health

Contact Info

Product

Resources

About